President Obama has tapped another New York City official for his administration, choosing Dr. Thomas R. Frieden, the New York City health commissioner, as the next director of the Centers for Disease Control and Prevention. The appointment does not require Senate confirmation.

In March, Obama nominated Dr. Margaret A. Hamburg, who was New York's health commissioner in the 1990s, as commissioner of the Food and Drug Administration. Her confirmation is seen as likely. Frieden and Hamburg worked together in New York City fighting a tuberculosis epidemic.

In New York, Frieden led the crusade to ban smoking in restaurants and bars, pushed to make H.I.V. testing a routine part of medical exams, and defended a program that passes out more than 35 million condoms a year, the New York Times reports.

Earlier in his career, Frieden worked at the CDC. In an e-mail sent today to the CDC staff, he wrote, “I love CDC; I am honored and humbled by the challenge and privilege of working with the greatest public health agency in the world.”  He begins in June.

Obama also announced that Dr. Rich Besser, the acting CDC director who has been prominent during the recent H1N1 flu outbreak, will continue in the job he's held for the past four years as head of the agency's coordinating office for terrorism preparedness and emergency response.